CN216155837U

CN216155837U - Sludge layered wet-type grinding and crushing anaerobic fermentation device

Info

Publication number: CN216155837U
Application number: CN202121117840.8U
Authority: CN
Inventors: 高博; 曾毅夫; 叶明强; 周益辉; 朱泽民
Original assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Current assignee: Changsha Industrial Research Institute Environmental Protection Co Ltd
Priority date: 2021-05-24
Filing date: 2021-05-24
Publication date: 2022-04-01
Anticipated expiration: 2031-05-24

Abstract

The utility model relates to a sludge treatment technical field provides a broken anaerobic fermentation device is ground to mud layering wet-type, including a jar body, first three-phase separator, marsh gas cabinet and mill, first three-phase separator locates jar internal and with the internal anaerobic fermentation district that divides into the lower part of jar and the sewage anaerobic zone on upper portion, the top of jar body is located to the marsh gas cabinet, is equipped with the inlet pipe and the discharging pipe in intercommunication anaerobic fermentation district on the jar body, is equipped with the drain pipe in intercommunication sewage anaerobic fermentation district on the jar body, and the mill is located the lower part of jar body and is used for grinding the mud in the anaerobic fermentation district, and the water piping connection has the return water tank, and the return water tank passes through the bottom intercommunication in return water pipe and anaerobic fermentation district, is equipped with the water pump on the return water pipe. The sludge is ground into fine particles by arranging a grinder so as to improve the anaerobic fermentation effect; through setting up the wet return, utilize the wet return to stir and dilute mud, increased the mobility of mud to improve anaerobic fermentation efficiency.

Description

Sludge layered wet-type grinding and crushing anaerobic fermentation device

Technical Field

The application belongs to the technical field of sludge treatment, and more particularly relates to a sludge layered wet grinding and crushing anaerobic fermentation device.

Background

Sludge landfill is the most extensive treatment mode at present in China. Most of landfill sites for sludge treatment in China are domestic garbage landfill sites, the water content of sludge is too high, and due to loose texture, the yield of leachate in the landfill sites is increased easily, and the collapse probability of landfill layers is increased due to the instability of landfill soil layers. After mechanical dehydration, the water content of most of sludge produced by urban sewage treatment plants in China can only reach about 80 percent, and the sludge cannot meet the requirements of sludge landfill standards. With the increasing shortage of land resources in China, the difficulty of opening up a new landfill site is high, and landfill treatment is not the best way for sludge. Therefore, resource utilization of the sludge is particularly important, and the problems that the sludge is difficult to break into particles and the anaerobic fermentation efficiency is low due to poor fluidity need to be solved urgently.

SUMMERY OF THE UTILITY MODEL

An object of the embodiment of this application is to provide a broken anaerobic fermentation device of mud layering wet-type grinding, has solved prior art and has existed the mud and be difficult to break to granule and mobility poor and lead to the anaerobic fermentation inefficiency technical problem.

In order to achieve the purpose, the technical scheme adopted by the application is as follows: the utility model provides a broken anaerobic fermentation device is ground to mud layering wet-type, including a jar body, first three-phase separator, marsh gas cabinet and mill, first three-phase separator is located the jar is internal and will the anaerobic fermentation district that divides into the lower part and the sewage anaerobic zone on upper portion in the jar body, the top of the jar body is located to the marsh gas cabinet, be equipped with the intercommunication on the jar body the inlet pipe and the discharging pipe in anaerobic fermentation district, be equipped with the intercommunication on the jar body the drain pipe in sewage anaerobic zone, the mill is located the lower part of the jar body is used for right mud in the anaerobic fermentation district grinds, the drain pipe is connected with the return water tank, the return water tank pass through the wet return with the bottom intercommunication in anaerobic fermentation district, be equipped with the water pump on the wet return.

In one embodiment, the feeding pipe is connected with a sludge feeding system, the discharging pipe is connected with a sludge treatment system, the water returning tank is connected with a sewage treatment system, and the methane tank is connected with a methane utilization system.

In one embodiment, a stirrer is arranged on the tank body, and the stirrer is positioned between the first three-phase separator and the grinder.

In one embodiment, the stirrers are arranged in four circumferentially spaced apart positions, the stirrers being inclined upwardly.

In one embodiment, the grinder comprises a central grinding disc arranged at the center of the tank body and peripheral grinding members symmetrically arranged on the periphery of the central grinding disc, and each peripheral grinding member comprises a motor, a connecting shaft and a grinding roller.

In one embodiment, the connecting shaft is horizontally disposed and the axis of the central grinding disk is horizontally disposed.

In one embodiment, a plurality of water distribution pipes which are arranged at intervals and communicated with the water return pipe are arranged at the bottom of the tank body, and the water distribution pipes are positioned below the grinder.

In one embodiment, the water distribution pipes are arranged alternately.

In one embodiment, a second three-phase separator is arranged in the sewage anaerobic zone, and the drain pipe is connected with the tank body at the upper part of the second three-phase separator.

In one embodiment, the biogas tank is a dual-mode biogas tank, two biogas outlets are arranged on the dual-membrane biogas tank, and a biogas storage cavity is arranged in the biogas tank.

The application provides a broken anaerobic fermentation device is ground to mud layering wet-type beneficial effect lies in: the sludge is ground into fine particles by arranging a grinder so as to improve the anaerobic fermentation effect; through setting up the wet return, utilize the wet return to stir and dilute mud, increased the mobility of mud to improve anaerobic fermentation efficiency.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is an exploded schematic view of an air conditioning system according to an embodiment of the present disclosure;

fig. 2 is an exploded schematic view of an air conditioning system according to an embodiment of the present application.

Wherein, in the figures, the respective reference numerals:

1. a tank body; 11. an anaerobic fermentation zone; 12. a sewage anaerobic zone; 13. a feed pipe; 131. a sludge feed system; 14. a discharge pipe; 141. a sludge treatment system; 15. a drain pipe; 16. returning to a water tank; 161. a sewage treatment system; 17. a water return pipe; 18. a water pump; 19. a water distribution pipe; 2. a first three-phase separator; 3. a methane cabinet; 31. a biogas outlet; 32. a biogas utilization system; 33. a biogas storage chamber; 4. a grinder; 41. a central abrasive disk; 411. mounting blocks; 42. a peripheral grinding member; 421. a motor; 422. a connecting shaft; 423. a grinding roller; 5. a stirrer; 6. a second three-phase separator.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or be indirectly connected to the other element.

It will be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like, as used herein, refer to an orientation or positional relationship indicated in the drawings that is solely for the purpose of facilitating the description and simplifying the description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be considered as limiting the present application.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise.

Referring to fig. 1 and 2, a sludge layered wet grinding and crushing anaerobic fermentation apparatus provided in the embodiments of the present application will now be described in detail. The anaerobic fermentation device comprises a tank body 1, a first three-phase separator 2, a methane cabinet 3 and a grinder 4. Wherein, the tank body 1 is an anaerobic fermentation main body, and the tank body 1 is made of corrosion-resistant alloy materials. The first three-phase separator 2 is arranged in the tank body 1 and divides the interior of the tank body 1 into an anaerobic fermentation area 11 at the lower part and a sewage anaerobic area 12 at the upper part, the first three-phase separator 2 can achieve the effect of separating solid from liquid and gas, sludge solids are left in the anaerobic fermentation area 11 and are fermented to generate methane, the methane and sewage can flow into the sewage anaerobic area 12, the sewage continues to be subjected to anaerobic fermentation to generate methane, the sewage generated by the sewage anaerobic area 12 is used for providing an anaerobic treatment section for sewage treatment at the rear end, the working procedures of adjustment and the like of the sewage treatment section are reduced, the cost is saved, and the methane is used for users to use and the like.

The biogas cabinet 3 is arranged at the top of the tank body 1, and the biogas cabinet 3 is used for temporarily storing biogas generated by anaerobic fermentation so as to be used by users at any time. A feeding pipe 13 and a discharging pipe 14 which are communicated with the anaerobic fermentation area 11 are arranged on the tank body 1, the feeding pipe 13 is used for discharging sludge into the tank body 1, and the discharging pipe 14 is used for discharging the sludge after the anaerobic fermentation is finished out of the tank body 1; the tank body 1 is provided with a drain pipe 15 communicated with the sewage anaerobic zone 12, and the drain pipe 15 is used for discharging the separated sewage out of the tank body 1 for the subsequent sewage treatment process; the grinder 4 is used for grinding the sludge into fine particles, so that the sludge can be more sufficiently subjected to anaerobic fermentation, and the fermentation efficiency of the anaerobic fermentation of the sludge is ensured.

Wherein, be equipped with return water tank 16 in the outside of jar body 1, drain pipe 15 is connected with return water tank 16, return water tank 16 still communicates through wet return 17 and anaerobic fermentation district 11's bottom, be equipped with water pump 18 on the wet return 17, return water tank 16 is used for keeping in sewage, when the mud viscosity in jar body 1 is too high, sewage in return water tank 16 can be under water pump 18's effect, the bottom of jar body 1 is flowed back to through return water tank 16, can play the effect of diluting mud on the one hand, on the other hand has the stirring effect to mud, thereby increase the mobility of mud, improve anaerobic fermentation efficiency.

According to the anaerobic fermentation device with the layered wet grinding and crushing functions for the sludge, the grinder 4 is arranged to grind the sludge into fine particles, so that the anaerobic fermentation effect is improved; by arranging the water return pipe 17, the sludge is stirred and diluted by utilizing the water return pipe 17, so that the fluidity of the sludge is increased, the anaerobic fermentation efficiency is improved, and the methane production rate is increased.

As shown in fig. 1, in the present embodiment, the feeding pipe 13 is connected to a sludge feeding system 131, and the sludge feeding system 131 is used for temporarily storing the sludge raw material to be treated and discharging the sludge raw material into the anaerobic fermentation zone 11 of the tank 1; the discharge pipe 14 is connected with a sludge treatment system 141, and the sludge treatment system 141 dehydrates and dries sludge so that the sludge can be utilized, such as composting or brick making; the water return tank 16 is connected with a sewage treatment system 161, and the sewage treatment system 161 is used for purifying organic matters and other substances in the sewage to obtain clean water for recycling; the methane tank 3 is connected with a methane utilization system 32, and the methane utilization system 32 can be used by users. In the present embodiment, the sludge feeding system 131, the sludge treatment system 141, the sewage treatment system 161 and the biogas utilization system 32 are all conventional devices such as a sludge mixer, a sludge dryer and a sewage treatment machine, and will not be described in detail herein.

As shown in fig. 1, in the present embodiment, a stirrer 5 is provided on the tank 1, and the stirrer 5 is located between the first three-phase separator 2 and the grinder 4. The agitator 5 is used to agitate the sludge so as to improve the fluidity of the sludge, and when the agitator 5 agitates the sludge, the sludge does not pass through the first three-phase separator 2.

As shown in fig. 2, agitator 5 is paddle agitator 5, and agitator 5 inclines upward and sets up, is favorable to mud from supreme cyclic motion down like this, and specifically, agitator 5 becomes the circumference interval and is provided with four, and the mud that can the omnidirectional drive jar internal 1 like this moves.

As shown in fig. 1 and 2, in the present embodiment, the grinder 4 includes a central grinding disk 41 disposed at the center of the can body 1 and two peripheral grinding members 42 symmetrically disposed on the periphery of the central grinding disk 41, and each peripheral grinding member 42 includes a motor 421, a connecting shaft 422, and a grinding roller 423. Specifically, the central grinding disk 41 is fixed in the tank 1 through at least two mounting blocks 411, the central grinding disk 41 is a cylindrical disk, and the axis of the central grinding disk 41 is horizontally arranged; the connecting shaft 422 is horizontally arranged, the grinding rollers 423 are also cylindrical rollers, and the end surfaces of the cylindrical rollers and the end surface of the central grinding disc 41 are used for grinding sludge so as to grind the sludge into fine particles. The end surfaces of the grinding roller 423 and the central grinding disc 41, which are close to each other, are provided with a plurality of grooves through which sludge can enter between the grinding roller 423 and the central grinding disc 41 when flowing, and when the grinding roller 423 rotates, the sludge can be ground when being taken out of the grooves, and the grinding principle of the grinding roller 423 and the central grinding disc 41 is similar to that of two grinding discs grinding materials.

As shown in fig. 1 and 2, in the present embodiment, the connecting shaft 422 of the peripheral grinding member 42 is horizontally disposed, so that the grinding function can be realized only by rotating the peripheral grinding member 42, thereby reducing the power cost.

As shown in fig. 1, in this embodiment, a plurality of water distribution pipes 19 are disposed at intervals at the bottom of the tank 1 and are communicated with the water return pipe 17, and the water distribution pipes 19 are located below the grinder 4. The water distribution pipe 19 is used for dividing the return water into a plurality of water flows so as to dilute and stir the sludge at multiple positions and improve the anaerobic fermentation efficiency.

Specifically, the plurality of water distribution pipes 19 are arranged alternately in length. That is, a plurality of water distribution pipes 19 are arranged in a long-short mode, so that the returned sewage can be introduced to the positions with different heights of the sludge, the sludge is fully diluted and stirred by the returned sewage, and the anaerobic fermentation efficiency is improved.

In this embodiment, a second three-phase separator 6 is disposed in the anaerobic sewage zone 12, the second three-phase separator 6 is used for further separating solid and liquid in the anaerobic sewage zone 12, and a drain pipe 15 is connected to the tank 1 at the upper part of the second three-phase separator 6, so that sewage discharged from the drain pipe 15 does not contain solid impurities basically, and the quality of subsequent sewage treatment is ensured. In other embodiments, the first and second three-

phase separators

2, 6 are replaced with filter screens.

In this embodiment, the biogas tank 3 is a dual-membrane biogas tank, two biogas outlets 31 are provided on the dual-membrane biogas tank 3, the biogas outlets 31 are used for connecting a biogas utilization system 32, and a biogas storage chamber 33 is provided in the biogas tank 3 for temporarily storing biogas for users to use at any time. The double-membrane biogas cabinet 3 has the advantages of convenient installation, stable pressure and strong capability of being suitable for temperature environment.

In this embodiment, the feeding pipe 13, the discharging pipe 14, the discharging pipe 15 and the biogas outlet 31 are all provided with a switch valve, and the switch valve is used for controlling the opening and closing of the feeding pipe 13, the discharging pipe 14, the discharging pipe 15 and the biogas outlet 31, so that one or more pipes can be selectively opened or closed according to actual conditions, and the anaerobic fermentation is ensured to be in a better state.

The broken anaerobic fermentation device of mud layering wet-type grinding that this application embodiment provided, it is first: the reflux pipe is arranged, so that the flowability of sludge under wet anaerobic conditions is effectively improved, the sludge can be ground into fine particles by arranging the grinder, the fermentation efficiency is improved, the methane production rate is improved, the actual measurement shows that the methane production rate of the device is improved by 20 percent compared with that of the traditional equipment under the condition of normal operation and equal occupied area, a regulating tank and an anaerobic tank for rear-end sewage treatment are reduced, and the separation and discharge of anaerobic biogas residues and biogas slurry are realized; secondly, the method comprises the following steps: effectively ensures the solid content of the anaerobic fermentation of the sludge and improves the unit utilization rate of the device.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. The utility model provides a broken anaerobic fermentation device of mud layering wet-type grinding which characterized in that includes: the anaerobic fermentation tank comprises a tank body (1), a first three-phase separator (2), a methane tank (3) and a grinder (4), wherein the first three-phase separator (2) is arranged in the tank body (1) and divides the interior of the tank body (1) into an anaerobic fermentation area (11) at the lower part and a sewage anaerobic area (12) at the upper part, the methane tank (3) is arranged at the top of the tank body (1), a feeding pipe (13) and a discharging pipe (14) which are communicated with the anaerobic fermentation area (11) are arranged on the tank body (1), a draining pipe (15) communicated with the sewage anaerobic area (12) is arranged on the tank body (1), the grinder (4) is arranged at the lower part of the tank body (1) and is used for grinding sludge in the anaerobic fermentation area (11), the draining pipe (15) is connected with a water return tank (16), and the water return tank (16) is communicated with the bottom of the anaerobic fermentation area (11) through a water return pipe (17), and a water pump (18) is arranged on the water return pipe (17).

2. The sludge layered wet grinding and crushing anaerobic fermentation apparatus according to claim 1, wherein: the sewage treatment system is characterized in that the feeding pipe (13) is connected with a sludge feeding system (131), the discharging pipe (14) is connected with a sludge treatment system (141), the water return tank (16) is connected with a sewage treatment system (161), and the methane cabinet (3) is connected with a methane utilization system (32).

3. The sludge layered wet grinding and crushing anaerobic fermentation apparatus according to claim 1, wherein: the tank body (1) is provided with a stirrer (5), and the stirrer (5) is positioned between the first three-phase separator (2) and the grinder (4).

4. The sludge layered wet grinding and crushing anaerobic fermentation apparatus according to claim 2, wherein: the stirrer (5) is provided with four at intervals in a circumference, and the stirrer (5) is obliquely arranged upwards.

5. The anaerobic fermentation apparatus for layered wet grinding and crushing of sludge according to claim 4, wherein: the grinder (4) comprises a central grinding disc (41) arranged at the center of the tank body (1) and peripheral grinding pieces (42) symmetrically arranged on the periphery of the central grinding disc (41), and each peripheral grinding piece (42) comprises a motor (421), a connecting shaft (422) and a grinding roller (423).

6. The anaerobic fermentation apparatus for layered wet grinding and crushing of sludge according to claim 5, wherein: the connecting shaft (422) is horizontally arranged, and the axis of the central grinding disc (41) is horizontally arranged.

7. The anaerobic fermentation apparatus for layered wet grinding and crushing of sludge according to claim 6, wherein: the bottom of the tank body (1) is provided with a plurality of water distribution pipes (19) which are arranged at intervals and communicated with the water return pipe (17), and the water distribution pipes (19) are positioned below the grinder (4).

8. The anaerobic fermentation apparatus for layered wet grinding and crushing of sludge according to claim 7, wherein: the water distribution pipes (19) are alternately arranged in length.

9. The sludge layered wet grinding fragmentation anaerobic fermentation apparatus of any one of claims 1 to 8, wherein: a second three-phase separator (6) is arranged in the sewage anaerobic zone (12), and the upper part of the second three-phase separator (6) is connected with the tank body (1) through a drain pipe (15).

10. The anaerobic fermentation apparatus for layered wet grinding and crushing of sludge according to claim 7, wherein: the methane cabinet (3) is a dual-mode methane cabinet (3), and two methane outlets (31) are arranged on the dual-membrane methane cabinet (3).